Dermod William O´brien ( 1865 - 1945 ) was an Irish painter. Dermod William O´brien s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 3905.59 USD for PORTRAIT OF A MODEL, THOUGHT TO BE EMILY SCOBEL in 2003 to 6974.65 USD for Milking Time in 2004 , based on the size and medium of the artwork.